Method of filling insoles.



No. 896,677.' PATBNTD AUGl 18, 190s.

W. A. ZIGKERMAN.

METHOD 0F FILLING INsoLEs.

APPLICATION FILED NOV. 19, 1967.

Invnol -OMG e 'o' o: e a e o e op@ WILHELM ZICKERMAN, OF

BOSTON, MASSACHUSETTS, ASSIGNOR TO AMANDA M. LOUGEE,

OF BOSTON, MASSACHUSETTS.

METHOD yOF FILLING- INSOLES.

` Specification of Letters Patent.'

Patented Aug. 18, 1908.

Application filed November 19, 19(17. Serial No. 402,840.

To all-whom it may concer/ri:l

Be it knownthat I, WILHELM A:- ZIoKER- MAN, a citizen of the UnitedStates, residing at 8 Berwick Park, Boston, county of Suffolk,

and State of Massachusetts, have invented' an Improvement in Methods ofAAFilling Insoles, of which the following description, in connectionwith' theV accompanying drawings, is a specication,v like lettersA onthe drawin representing like parts. c

This invention pertains to a method of applyin cementitious fillingmaterial to'boot land s oe soles, especially insolesgland .com

prises variousfeatures of procedure explained in .the course; of thefollowing description and defined in'the'annexed claims. .u

The character of theinvention-may be best understood by reference to theaccompanying drawings, whichshow.. an illustrative insQ e.- fillingmachine Y whereby an' exemplary method embodying this .invention `may beconveniently practiced Figure 1 is aside elevation of a machine intendedmore particularly fr applying filling material to insoles of shoes andFig. 2 is y a detail perspective of'apait of said machine.

. While tbe invention may be described convenientlyT in connection withthe machine in the drawingsit is by n0 -means essentially limited to thespecific details of operation, nor to the specific functions involved insaid machine. 1

The illustrative machine has insole presenting means supplied by atraveling chain conveyer 1,- appropriately mounted on sprocket wheelsand driven from a master shaft 2. In the preferred operation of theillustrative machine, the conveyer travels in the direc# tion of anarrow 3.

' The insole presenting means is exemlified by shoes carrying trays 4-4,removably mounted on steps 5 and 6. Any practicable number of trays 4may be used, and each tray may be arranged to accommodate anypracticable number of shoes. The racks 4 4 may travel with the conveyer1, and during this travel, in the operation of thisspecic machine, eachshoe is first provided with an application of cement from a cementreservoir 10; and thereafter with an application of dry fillingmaterial, such, for example, as

ground cork, sawdust or the like delivered.

from a hopper11.

I n the cement tank 10, a steam coil 12 maintains thecement in properfluid condition. The cement Aescapes from the tank through one or moreoutlets 14 in the bottom of a chest 16. 'Vertically' movable plungers 17are reciprocated to open and close the 'outlets 14. .While the specificmachine provides for automatic operation of the plungers 17, the lattermay be manually operated,

Wherefore itis unnecessary to describe them further.

The cement issuing from an outlet 14 is received upon a cementdistributer 18 (see Fig. l2), l and being separated into three streams,one traversing the slot in the dis tributer 18 and the other 'twofiowing along the-diverging faces thereof, is distributed to differentparts ,of the insole. with` the cement on the insole continues to `move(see arrow 3), a s' readerorscra er 20 smooths the cement an ap lies itto al parts of the insole. Proceeding 'urther, the insole arrivesbeneath the filling material hopper. 1 1. The latter has an outlet'22closed by a sliding gate,- Wh-ich may be manipulated in any c onvenientmanner. opened as the advance end -of the cemented insole takes positionbeneath it; and the gate remains o en during continued travel of theshoe unti the filling material has been delivered along the "desiredlength. In this manner, a dry filling material maybe deliveredprogressively along the insole to its freshly cemented surface; andthefilling ma! terial so delivered may com letely cover all cemented partsof the inso e. Progressing further, the advance end of the insoleengages with a spring pressed roller24, which presses down or lays thefiller firmly against the cemented insole. .This pressing action of theroller 24 maytake place during continued mpvement of the shoe, so. thatthe filling material may be progressively pressed into place. Also, anysuperfluous (ry material may be pushed rearwardly on the shoe by theroller 24. After departing from the roller 24, the insole passes beneatha discarding device, such as a brush 25, by which superfluous fillingmaterial is removed from the insole. The above described cycle ofoperations is preferably repeated for each shoe or each tray of shoes;an d various operations in the cycle may take place simultaneously ondifferent shoes.

The illustrative method described as prac ticed by the machine in thedrawings may be conveniently summarized as follows :-Ce-

As the shoe Preferably, the gate 22 is sawdust or the like, hereinbeforesuggested' ment is suitably applied to the insole or other' Work; thedry filling material or the like is applied thereto progressively, islaid thereagainst progressively so as to cover the cemented parts; andfinally su eriiuous, nonadhering material is discarde.

Describing the illustrative method more in detail, the specificapparatus shown in the drawings may perform several characteristicoperations. For example, the ground cork,

as a suitable filling material, is inherently elastic when in its dry,granular state; and this, u on being deposited on the sole and passedeneath the roller 24, is firmly pressed againstvthe sole face, therebycompacting it and, it may be, actually compressing it, so as `to forcethe particles of filler closely together and to express air from themass of'liller. When the filler thus compressed departs from beneath theroller 24 and is released from the pressure thereof the bodyv of filler,by its elasticity, expands slightly and thereby, tlirougha species ofsuction, the cement .is drawn from the sole face into the interstices ofthe filler. This may have the ellfect of a sponge-like action,'attributable to the elasticity of the filler, whiclr may be effectiveto draw the cement to a higher point in the body of the liller thanwould be obtained by mere capillarity of inflexible or inelasticparticles. At the same time, the compacting of the surface of a'comparatively thick mass of filler causesthe particles at the surfaceto cohere Vlirmly witho ut permitting or req uiringlthe invention is notlimited to the specific imethod just summarized, nor is it to be limitedto the particular functions performed by lfiller to cause parts thereofto-be directly incorporated Wththe cement and other parts to cohere, theWhole presenting a surface substantially dry and free from cement.

r2. Amethod of iilling insoleswhieheonsists in applying cement to'thesole-face Within its lip; introducing dry elastic filler to the cementedarea; compacting and compressing the dry elastic filler. against thecement, levcling it to substantially the depth ofthe lip and removingsuperlluous iiller.

3. A method of filling insoles Which consists in supplying cement to thesole-face; covering the sole-f .ce with an excess of elastic filler;compacting thesame to cause it to cohere and adhere 'to the cement; anddiscarding any filler which remains free.

44. A4 method of filling insoles which consists in supplyingI cement tothe sole-face; supplyingr elastic dry `liller to the cemented area;compressing the elastic dry Jfiller against the cement to express airtherefrom; and then releasing the elastic 'filler from compression,permitting it to expand and draw cement by suction into interstices ofthe filler.

5. A method of Vfilling,` ins'oles which` consists in supplying cementto the sole-face supplying dry elastic iiller to the cemented area,compressing the elastic 'filler against the cemented4 area; andreleasing` it from compression, permitting' it to expand and admitcement into interstices.

In testimony whereof, l have signed my name to this specification, inthe presence of two subscribing Witnesses.

WILHELM A.' ZICH ERMAN.

Witnesses R. S. BARRoWs,

I. M. KENT.

